Double acting pump design utilizing two rotating discs

Abstract

Embodiments provide for two rotating parallel discs to power horizontal pistons back and forth configured in a radial pattern, comprised of double acting fluid end that may be used in high pressure fluid handling equipment, wherein the fluid end has an arrangement that acts upon both a suction and a discharge operation.

What is claimed is: 
     
       1. An arrangement, comprising:
 a shaft; 
 two parallel tapered rotating discs mounted on the shaft, wherein each disc is configured to rotate with the shaft, and wherein each portion of a first of the two parallel tapered rotating discs maintains a fixed distance between a corresponding portion of a second of the two parallel tapered rotating discs during rotation of both of the two parallel tapered rotating discs with the shaft; 
 two outer housings and two outer housing covers, wherein each outer housing combines with an outer housing cover to form a sealed chamber, and wherein one tapered rotating disc is within each sealed chamber; 
 at least one block arranged in a radial pattern between the two parallel tapered rotating discs; each at least one block having at least one void; 
 a piston located within each at least one void in each block, each piston configured to translate from a first position to a second position, between the tapered rotating discs; 
 wherein each block comprises:
 a first housing connected to the block, the first housing having a suction side and a discharge side, the first housing configured to channel a fluid; 
 a second housing connected to the block, the second housing having a suction side and a discharge side, the second housing configured to channel the fluid; 
 at least a first suction check valve and a first discharge check valve located in the first housing; and 
 at least a second suction check valve and a second discharge check valve located in the second housing, 
 
 wherein the radial pattern is defined as a measured distance away from a center of the shaft and wherein each piston travels between the first housing and the second housing. 
 
     
     
       2. The arrangement according to  claim 1 , wherein rotation of the shaft causes translation of each piston. 
     
     
       3. The arrangement according to  claim 2 , wherein a first end of each piston is connected to a first of the tapered rotating discs and a second end of each piston is connected to a second of the tapered rotating discs. 
     
     
       4. The arrangement according to  claim 1 , wherein each first housing is connected to respective block through a first bolted connection. 
     
     
       5. The arrangement according to  claim 1 , wherein each second housing is connected to respective block through a second bolted connection. 
     
     
       6. The arrangement according to  claim 1  wherein each tapered rotating disc has an internal bore that includes a spline, and wherein each tapered rotating disc engages the shaft at the respective spline. 
     
     
       7. The arrangement according to  claim 1  wherein the outer housings and the outer housing covers are each respectively mounted on the shaft by a bearing surrounding the shaft. 
     
     
       8. The arrangement according to  claim 1 , further including a bearing mounted between each tapered rotating disc and its respective outer housing and configured to support axial loads developed during rotation of respective tapered rotating disc. 
     
     
       9. The arrangement according to  claim 1  wherein each sealed chamber allows for oil lubrication of equipment within the respective sealed chamber. 
     
     
       10. The arrangement according to  claim 1  wherein the sealed chambers are arranged on the shaft such that their outer housing covers face each other and each piston extends between the tapered rotating discs and through the outer housing covers. 
     
     
       11. A pump, comprising:
 a shaft; 
 two parallel rotating discs mounted on the shaft, wherein each rotating disc is configured to rotate with the shaft, and wherein each portion of a first of the two rotating discs maintains a fixed distance from a corresponding portion of a second of the two rotating discs during rotation of the two rotating discs with the shaft; 
 two outer housings and two outer housing covers, wherein each outer housing combines with an outer housing cover to form a sealed chamber, wherein one of the two parallel rotating disc is within each sealed chamber, and 
 at least one double acting fluid end arranged in a radial pattern between the two parallel rotating discs wherein the radial pattern is defined as a measured distance away from a center of the shaft, and 
 wherein each double acting fluid end comprises:
 a block, each block including a void; each block including a piston located within the void of the block, 
 the piston configured to translate from a first position to a second position within the void; 
 a first housing connected to the block, the first housing having a suction side and a discharge side, the first housing configured to channel a fluid; 
 a second housing connected to the block, the second housing having a suction side and a discharge side, the second housing configured to channel the fluid; 
 at least a first suction check valve and a first discharge check valve located in the first housing; 
 at least a second suction check valve and a second discharge check valve located in the second housing; 
 
 wherein the sealed chambers are arranged on the shaft such that their outer housing covers face each other; and 
 wherein each piston extends through the two outer housing covers and between the two rotating discs. 
 
     
     
       12. The arrangement according to  claim 11  wherein each rotating disc has an internal bore that includes a spline, and wherein each rotating disc engages the shaft at the respective spline. 
     
     
       13. The arrangement according to  claim 11  wherein the outer housings and the outer housing covers are each respectively mounted on the shaft by a bearing surrounding the shaft. 
     
     
       14. The arrangement according to  claim 11 , further including a thrust bearing mounted between each rotating disc and its respective outer housing and configured to support axial loads developed during rotation of the respective rotating plate. 
     
     
       15. The arrangement according to  claim 11  wherein each sealed chamber allows for oil lubrication of equipment within the respective sealed chamber. 
     
     
       16. The arrangement according to  claim 11  wherein the arrangement includes an odd number of double acting fluid ends. 
     
     
       17. The arrangement according to  claim 11  wherein the arrangement includes seven double acting fluid ends. 
     
     
       18. A pump, comprising:
 a shaft; 
 two parallel rotating discs mounted on the shaft, wherein each rotating disc has an internal bore that includes a spline, wherein each rotating disc engages the shaft at the respective spline so as to rotate with the shaft, and wherein each portion of a first of the two rotating discs maintains a fixed distance from a corresponding portion of a second of the two rotating discs during rotation of the two rotating discs with the shaft; 
 two outer housings and two outer housing covers, wherein each outer housing combines with an outer housing cover to form a sealed chamber, wherein one rotating disc is within each sealed chamber; 
 a thrust bearing mounted between each rotating disc and its respective outer housing and configured to support loads developed during rotation of the respective rotating disc; and 
 at least one double acting fluid end arranged in a radial pattern between the two parallel rotating discs, wherein the radial pattern is defined as a measured distance away from a center of the shaft, and 
 wherein each double acting fluid end comprises:
 a block, each block including a void; each block including a piston located within the void of the block, 
 the piston configured to translate from a first position to a second position within the void; 
 a first housing connected to the block, the first housing having a suction side and a discharge side, the first housing configured to channel a fluid; 
 a second housing connected to the block, the second housing having a suction side and a discharge side, the second housing configured to channel the fluid; 
 at least a first suction check valve and a first discharge check valve located in the first housing; 
 at least a second suction check valve and a second discharge check valve located in the second housing; 
 
 wherein the sealed chambers are arranged on the shaft such that their outer housing covers face each other; and 
 wherein each piston extends through the two outer housing covers and between the two rotating discs. 
 
     
     
       19. The arrangement according to  claim 18  wherein the outer housings and the outer housing covers are each respectively mounted on the shaft by a bearing surrounding the shaft. 
     
     
       20. The arrangement according to  claim 18 , wherein the thrust bearing is configured to support axial loads.